PHP CURL DELETE request

I'm trying to do a DELETE http request using PHP and cURL.

I have read how to do it many places, but nothing seems to work for me.

This is how I do it:

public function curl_req($path,$json,$req)
{
    $ch = curl_init($this->__url.$path);
    $data = json_encode($json);
    curl_setopt($ch, CURLOPT_CUSTOMREQUEST, $req);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json','Content-Length: ' . strlen($data)));
    $result = curl_exec($ch);
    $result = json_decode($result);
    return $result;
}

I then go ahead and use my function:

public function deleteUser($extid)
{
    $path = "/rest/user/".$extid."/;token=".$this->__token;
    $result = $this->curl_req($path,"","DELETE");
    return $result;

}

This gives me HTTP internal server ERROR. In my other functions using the same curl_req method with GET and POST, everything goes well.

So what am I doing wrong?

I finally solved this myself. If anyone else is having this problem, here is my solution:

I created a new method:

public function curl_del($path)
{
    $url = $this->__url.$path;
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "DELETE");
    $result = curl_exec($ch);
    $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
    curl_close($ch);

    return $result;
}

Update 2

Since this seems to help some people, here is my final curl DELETE method, which returns the HTTP response in JSON decoded object:

  /**
 * @desc    Do a DELETE request with cURL
 *
 * @param   string $path   path that goes after the URL fx. "/user/login"
 * @param   array  $json   If you need to send some json with your request.
 *                         For me delete requests are always blank
 * @return  Obj    $result HTTP response from REST interface in JSON decoded.
 */
public function curl_del($path, $json = '')
{
    $url = $this->__url.$path;
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "DELETE");
    curl_setopt($ch, CURLOPT_POSTFIELDS, $json);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    $result = curl_exec($ch);
    $result = json_decode($result);
    curl_close($ch);

    return $result;
}

To call GET,POST,DELETE,PUT All kind of request, i have created one common function

function CallAPI($method, $api, $data) {
    $url = "http://localhost:82/slimdemo/RESTAPI/" . $api;
    $curl = curl_init($url);
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
    
    switch ($method) {
        case "GET":
            curl_setopt($curl, CURLOPT_POSTFIELDS, json_encode($data));
            curl_setopt($curl, CURLOPT_CUSTOMREQUEST, "GET");
            break;
        case "POST":
            curl_setopt($curl, CURLOPT_POSTFIELDS, json_encode($data));
            curl_setopt($curl, CURLOPT_CUSTOMREQUEST, "POST");
            break;
        case "PUT":
            curl_setopt($curl, CURLOPT_POSTFIELDS, json_encode($data));
            curl_setopt($curl, CURLOPT_CUSTOMREQUEST, "PUT");
            break;
        case "DELETE":
            curl_setopt($curl, CURLOPT_CUSTOMREQUEST, "DELETE"); 
            curl_setopt($curl, CURLOPT_POSTFIELDS, json_encode($data));
            break;
    }
    $response = curl_exec($curl);
    $data = json_decode($response);

    /* Check for 404 (file not found). */
    $httpCode = curl_getinfo($curl, CURLINFO_HTTP_CODE);
    // Check the HTTP Status code
    switch ($httpCode) {
        case 200:
            $error_status = "200: Success";
            return ($data);
            break;
        case 404:
            $error_status = "404: API Not found";
            break;
        case 500:
            $error_status = "500: servers replied with an error.";
            break;
        case 502:
            $error_status = "502: servers may be down or being upgraded. Hopefully they'll be OK soon!";
            break;
        case 503:
            $error_status = "503: service unavailable. Hopefully they'll be OK soon!";
            break;
        default:
            $error_status = "Undocumented error: " . $httpCode . " : " . curl_error($curl);
            break;
    }
    curl_close($curl);
    echo $error_status;
    die;
}

> CALL Delete Method

$data = array('id'=>$_GET['did']);
$result = CallAPI('DELETE', "DeleteCategory", $data);

> CALL Post Method

$data = array('title'=>$_POST['txtcategory'],'description'=>$_POST['txtdesc']);
$result = CallAPI('POST', "InsertCategory", $data);

> CALL Get Method

$data = array('id'=>$_GET['eid']);
$result = CallAPI('GET', "GetCategoryById", $data);

> CALL Put Method

$data = array('id'=>$_REQUEST['eid'],'title'=>$_REQUEST['txtcategory'],'description'=>$_REQUEST['txtdesc']);
$result = CallAPI('POST', "UpdateCategory", $data);

My own class request with wsse authentication

class Request {

	protected $_url;
	protected $_username;
    protected $_apiKey;
	
	public function __construct($url, $username, $apiUserKey) {
		$this->_url = $url;		
		$this->_username = $username;
        $this->_apiKey = $apiUserKey;
	}
	
	public function getHeader() {
    	$nonce = uniqid();
        $created = date('c');
	    $digest = base64_encode(sha1(base64_decode($nonce) . $created . $this->_apiKey, true));

	    $wsseHeader = "Authorization: WSSE profile=\"UsernameToken\"\n";
	    $wsseHeader .= sprintf(
            'X-WSSE: UsernameToken Username="%s", PasswordDigest="%s", Nonce="%s", Created="%s"', $this->_username, $digest, $nonce, $created
   		);
    
    	return $wsseHeader;
	}
	
	public function curl_req($path, $verb=NULL, $data=array()) {					
		
		$wsseHeader[] = "Accept: application/vnd.api+json";
		$wsseHeader[] = $this->getHeader();
		
		$options = array(
			CURLOPT_URL => $this->_url . $path,
    		CURLOPT_HTTPHEADER => $wsseHeader,
   			CURLOPT_RETURNTRANSFER => true, 
  			CURLOPT_HEADER => false	  			
		);					
		
		if( !empty($data) ) {
			$options += array(
				CURLOPT_POSTFIELDS => $data,
				CURLOPT_SAFE_UPLOAD => true
			);				 			
		}
		
		if( isset($verb) ) {
			$options += array(CURLOPT_CUSTOMREQUEST => $verb);							
		}

		$ch = curl_init();
		curl_setopt_array($ch, $options);
		$result = curl_exec($ch);					
		
		if(false === $result ) {
			echo curl_error($ch);
		}
		curl_close($ch);

		return $result;	
	}
}

switch ($method) {
    case "GET":
        curl_setopt($curl, CURLOPT_CUSTOMREQUEST, "GET");
        break;
    case "POST":
        curl_setopt($curl, CURLOPT_CUSTOMREQUEST, "POST");
        break;
    case "PUT":
        curl_setopt($curl, CURLOPT_CUSTOMREQUEST, "PUT");
        break;
    case "DELETE":
        curl_setopt($curl, CURLOPT_CUSTOMREQUEST, "DELETE"); 
        break;
}